Home / 20,335.68-28,066.60-13,957.03

Finding the Fourth Proportional to 20,335.68, 28,066.60 and 13,957.03

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Solution

The fourth proportional to 20,335.68, 28,066.60 and 13,957.03 is: 19,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.68 : 28,066.60 = 13,957.03 : x
  2. Step 2: Convert to fraction form
    20,335.68/28,066.60 = 13,957.03/x
  3. Step 3: Cross multiply
    20,335.68x = 28,066.60 × 13,957.03
  4. Step 4: Simplify right side
    20,335.68x = 391,726,443.18
  5. Step 5: Solve for x
    x = 391,726,443.18/20,335.68
  6. Step 6: Final answer
    x = 19,263.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.